By Shalosh B. Ekhad and Doron Zeilberger
(Exclusively published in the Personal Journal of Shalosh B. Ekhad and Doron Zeilberger)
Written: June 24, 2018.
This is a modest tribute to our beloved friend and colleague, Volodia Retakh, on the occaison of his 70th birthday (that happened May 20 this year), celebrated in RetakhFest at Angers, France, June 25-30, 2018.
Added July 25, 2018: Here is the lecture that I gave at the RetakhFest on June 26, 2018.